Flow or Leveling
When the paint does not dry to a smooth film after application, it results in brush and roller marks on the surface. This condition is Flow or Levelling and this defect is often unpleasant.
|Paint is too heavy||
• Reduce the viscosity of the paint and get the correct consistency.
• Check for correct viscosity using Zahn #2 viscosity cup.
|Faster Evaporation of the Solvent||Use solvents that evaporate slower, if the air temperature is higher.|
|Improper Air Atomization||Adjust the spray gun|
|Application of paint on Thin Surfaces||Apply paint on surfaces with more passes. Let the application be wet immediately.|
|Increase in Air Movement||Reduce the draft|